Device for automatic extinction or dampening of the flame in gas-cookers



A. C. E HOJGAARD.

DEVICE FOR AUTOMATIC EXTINCTION 0B DAMPENING OF THE FLAME IN GAS COOKERS.

APPLICATION FILED APR. 13.]920- Patented Sept. 7, 1920.

STATES, PATENT OFFICE.

ANDERS CHRISTIAN EMIL HOJGAARD, OF COPENHAGEN, DENMARK.

DEVEGE E 03 AUTOMATIC EXTINCTION 0R DAMPENING OF THE FLAME-IN GASJJOOKERS.

Patented Sept. '7, 1920.

Application filed April 13, 1920. Serial No. 373,641.

To all whom it may concern:

Be it known that 1, Airbus CHRISTIAN EMIL HoJeAARn, director, a subject of the King of Denmark, residing at Copenhagen, in the Kingdom of Denmark, have invented new and useful Improvements in Devices for Automatic Extinction or Dampening of the F lame in Gas-Cookers, of which the following is a specification.

Devices are known for automatic extinction or-dampening of the flame in gas-cookers, which are fitted with a, piston actuated by the steam pressure and connected, by means of a flexible rod, to a dampening member for the gas supply.

The distinguishing feature of the present invention consists in the piston actuated by the steam-pressure being placed within the hood serving as lid for the kettle and fastened to one end of the flexible rod to the other end of which the stopping member proper is fastened;

Another portion of the invention consists ,in the provision of a locking device, by

means of which the stopping member may be retained in the position into which it has been moved, so that the supply of gas may either be cut off entirely or maintained to an extent corresponding to the dampened flame.

The invention is illustrated on the drawin where igure 1 shows a gas cooking device with a kettle and with the gas-supply piping, in side view, and

' Fig. 2 a vertical longitudinal'section of the dampening device, on a larger scale.

a is the gas-cooker, b the kettle, c the gassupply piping with an ordinary cock (1, and e the hose leading to the gas cooker. f is the spout of the kettle into which a hood 9 is inserted. Within the latttei. there is provided a plate or piston it which is actuated by spring 35. which tends t press the plate toward the bottom end of the hood, where the edge is turned slightly inward so as to prevent the plate from being pressed out of the hood. in the wail of the latter and opposite a whistle if placed on the spout 7, there is provided a hole or a slot, so that the steam may escape'through the whistle and cause the latter to sound, when the plate 71. is pressed sufiiciently far forward in the hood. In order to insure the hood 9 being inserted in such a manner in the spout that the hole comes directly opposite the whistle, a PIQJGCUOH may be provided on the hood and, in the spout, a corresponding slot, into which the projection is to enter, when the hood is inserted in the spout. The plate 1. 18 supported by a rod Z, through a hole in the bottom of the hood, and is connected, beyond the same, to a flexible rod m, which is adapted to move in an equally flexible sleeve 71.. The sleeve end farthest from the hood is fastened to a housing 0, which is formed on the hose-cock cl, and is fitted with a passage p for the gas. The end of the flexible rod 1 within the housing is fastened to a rack 91 adapted to be moved up or down in the housing 0 and fitted, at bottom, with an extension 1* passing gas-tightly. through a stuifing box 8 or the' likeand supporting below the same, a dampenlng member t, which may be shaped which passes either as a stopping plate or a plug, which may be moved up or down in the passage 31.

u is a lever whose upper end is shaped as a handle and whose lower end is shaped as a pawl, pressed by a spring 1) against the teeth of the rack 9 so as to prevent the rack and, thereby, the stopping member from being accidentally withdrawn from its stopping or dampenlng position, when the steam pressure drops.

&0 is an adjusting screw, by means of which the downward motion of the stopping. member may be limited, so that it becomes practicable to prevent the gas su ply to the burner from being stopped comp etely. An arrangement of this nature will be especially suitable for cooking in cooking vessels in which for instance the food is. heated to the boiling point, whereafter the flame is to be dampened to such an extent that a slow boiling may be maintained. If the adjusting screw happens to be adjusted in such a manner that the flame cannot be extinguished or dampened, the hood 9 will be pressed out of the spout by the steam, so that no danger may occur on account of the kettle or cooking vessel bursting.

\ I The advantage of the device described quired for each kettle or each cooking vessel.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. A gas supply controlling device, comprising .in combination, a' kettle having a spout, a flexible sleeve in communication at one end thereof with the gas supply and having at its opposite end a member adapted to close said spout, a flexible rod within said sleeve means secured at one end of said rod for obstructing the passage of gas, and means, at the opposite end of the rod and adaptedto be actuated by pressure within the kettle for operating said obstructing means.

2. A 'gas' supply controlling device, comprising in'combination, a kettle having a spout, a flexible sleeve in communication at one end thereof with the gas supply and having at its opposite end a member adapted to close said spout, a flexiblerod within said sleeve, means secured at one end of said rod for obstructing the passage of gas, means at the opposite end of the rod and adapted to be actuated by'pressure within the kettle for operating said obstructing means, and means for limiting the operationof said obstructing means. 3. A gas supply controlling device, comprising in com ination, a kettle having a -spout,, a flexible sleeve in communication at one end thereof with the gas supply and having at itsopposite end a member ada ted to close said spout, a flexible rod within said sleeve, means secured at one end of said rod for-obstructing the passage of gas, means at the opposite end of the rod and adapted to be actuated by pressure within the kettle for operating said obstructing means, and means for preventing the return of said obstruct-- ing" means toinoperative position.

4. A gas supply controlling device, comprising in combination, a kettle having a spout, a flexible sleeve in communication at one end thereof with the gas supply and having at its opposite end a member adapted to close said spout, a flexible rod within said sleeve, means secured at one end of said rod for obstructing the passage of gas, means at the opposite end of the rod and adapted to be actuated by pressure within the kettle for operating said obstructing means, means for limiting the operation of said obstructing means, and means for preventing the return of said obstructing means to inoperative posit1on.

5. A gas supply controlling device, comprising in combination, a kettle having a spout, a flexible sleeve in communication at one end thereof with the as supply and having at its opposite end a ood removabl in: serted into said spout, a flexible rod w thin said sleeve, means secured at one end of said rod for obstructing the passage of gas, and a spring-pressed piston secured to the oppoplitedend of the rod and slidable within said 6. A gas supply controlling device, comprising in combination, a kettle having a spout, a flexible sleeve in communication at one end thereof with the gas supply and having at its opposite end a hood removably inserted into said spout, a flexible rod within site end of the rod and slidable within said hood, and means for preventing the return of said obstructing means to inoperative position, said means comprising a ratchet carried by said rod and a spring-pressed pawl for engaging said ratchet.

7. A gas supply controlling device, comprising in combination, a kettle having a spout, a flexible sleeve in communication at one end thereof withthe gas supply and having at its opposite end a member adapted to close said spout, a flexible rod within said sleeve, a plug atone end of said rod in. position to obstruct the gas supply, means at the opposite end of the rod adapted to be actuated by pressure within the kettle for operating said plug, and means for limiting the obstructive movement of the plug.-

8. A gas supply controlling device, comprising in combination, a kettle having a spout, a flexible sleeve in communication at one end thereof with the gas sup ly and having at its opposite end a mem er adapted to close said spout, a flexible rod within said sleeve, a plug at one end of said rod in position to obstruct the gas supply, means at the opposite end of the rod adapted to be actuated by pressure within the kettle for operating sa1d plug, and means for limiting the ing at its opposite end a member ada ted to close said spout, a flexible rod within said tion to obstruct the gas supply, means at the opposite end of the rod adapted to be actuated' by pressure within the kettle for operating sald plug, a, screw extendingjnto the gas passage in position to contact with said plug for limitin its obstructive movement, a ratchet carrie by said rod, and a s ring- I, pressed pawl for engaging said rate et to prevent the return of said plug to inopera- 10 tiveposition.

In-testimony whereof I have signed my name to this specification.

ANDERS CHRISTIAN EMIL H01 GAARD.

Witnesses H. BRUNN, A. CHRISTOFFERSEN. 

